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Can Exchange Online Forward the Original Message from a Bounce?
Question details
The user wants to know if there is a way to automatically retain or forward the original email message when Exchange Online generates an automated non-delivery report (NDR) bounce message.
- Product
- Exchange Online
- Device & OS
- not provided
- Scenario
- Attempting to recover or automatically forward the original email content after an automated bounce message (NDR) occurs due to a delivery failure.
- Observed behavior
- Exchange Online generates an NDR for the bounced email, but standard inbox or mail-flow rules fail to automatically forward or extract the original message content from the system-generated bounce notification.
Ensure you have Exchange Administrator credentials to access the Exchange admin center, as standard end-users cannot perform organization-wide message traces.
Investigate Failed Messages Using Message Trace
Since Exchange Online does not automatically forward original messages from NDRs, administrators must use the Message Trace tool to find details about the failed delivery.
Exchange Online does not provide a supported automatic way to forward the original message after an NDR (Non-Delivery Report) is generated.
System-generated NDRs are handled differently by the server. Ordinary inbox rules and mail-flow rules generally cannot control or intercept these automated messages to prevent infinite mail loops.
Navigate to the Microsoft 365 Defender portal or Exchange admin center and log in using your administrator credentials.
In the left-hand navigation pane, go to Mail flow and select Message trace.
Enter the sender or recipient email address involved in the bounce and select the specific time range when the non-delivery report occurred.
Click Search to generate the results, then click on the specific failed message to review the Non-Delivery Details report and investigate the routing failure.
Try WPS Office for Your Document and Email Needs
While Exchange Online manages your backend email server routing and NDRs, WPS Office provides a robust, lightweight, and free alternative to Microsoft Office for creating, editing, and managing your daily documents seamlessly.
- 1. Visit the official website: Open your browser and navigate to the official WPS Office website.
- 2. Download the software: Click the Free Download button and select the correct version for your operating system.
- 3. Install and launch: Run the downloaded setup file and follow the on-screen instructions to complete the installation.
Frequently Asked Questions
Why can't I create an inbox rule to forward NDR bounce messages?
System-generated Non-Delivery Reports (NDRs) bypass standard inbox and mail-flow rules in Exchange Online to prevent infinite mail loops, meaning you cannot automate forwarding actions for them.
Is the original email permanently lost when an NDR is generated?
The original email is not entirely lost, but its complete body is not attached to the NDR. The sender will still have the original outgoing message saved in their Sent Items folder.
Who has permission to run a Message Trace in Exchange Online?
Only users assigned the Exchange Administrator, Global Reader, or Security Administrator roles can access and run Message Traces in the Microsoft 365 admin center.
